// Copyright 2016 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter/material.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('ExpandIcon test', (WidgetTester tester) async { bool expanded = false; await tester.pumpWidget( wrap( child: ExpandIcon( onPressed: (bool isExpanded) { expanded = !expanded; } ) ) ); expect(expanded, isFalse); await tester.tap(find.byType(ExpandIcon)); expect(expanded, isTrue); await tester.pump(const Duration(milliseconds: 100)); await tester.tap(find.byType(ExpandIcon)); expect(expanded, isFalse); }); testWidgets('ExpandIcon disabled', (WidgetTester tester) async { await tester.pumpWidget( wrap( child: const ExpandIcon( onPressed: null ) ) ); final IconTheme iconTheme = tester.firstWidget(find.byType(IconTheme).last); expect(iconTheme.data.color, equals(Colors.black38)); }); testWidgets('ExpandIcon test isExpanded does not trigger callback', (WidgetTester tester) async { bool expanded = false; await tester.pumpWidget( wrap( child: ExpandIcon( isExpanded: false, onPressed: (bool isExpanded) { expanded = !expanded; } ) ) ); await tester.pumpWidget( wrap( child: ExpandIcon( isExpanded: true, onPressed: (bool isExpanded) { expanded = !expanded; } ) ) ); expect(expanded, isFalse); }); testWidgets('ExpandIcon is rotated initially if isExpanded is true on first build', (WidgetTester tester) async { bool expanded = true; await tester.pumpWidget( wrap( child: ExpandIcon( isExpanded: expanded, onPressed: (bool isExpanded) { expanded = !isExpanded; }, ) ) ); final RotationTransition rotation = tester.firstWidget(find.byType(RotationTransition)); expect(rotation.turns.value, 0.5); }); testWidgets('ExpandIcon has correct semantic hints', (WidgetTester tester) async { final SemanticsHandle handle = tester.ensureSemantics(); const DefaultMaterialLocalizations localizations = DefaultMaterialLocalizations(); await tester.pumpWidget(wrap( child: ExpandIcon( isExpanded: true, onPressed: (bool _) {}, ) )); expect(tester.getSemanticsData(find.byType(ExpandIcon)), matchesSemanticsData( hasTapAction: true, hasEnabledState: true, isEnabled: true, isButton: true, onTapHint: localizations.expandedIconTapHint, )); await tester.pumpWidget(wrap( child: ExpandIcon( isExpanded: false, onPressed: (bool _) {}, ) )); expect(tester.getSemanticsData(find.byType(ExpandIcon)), matchesSemanticsData( hasTapAction: true, hasEnabledState: true, isEnabled: true, isButton: true, onTapHint: localizations.collapsedIconTapHint, )); handle.dispose(); }); } Widget wrap({ Widget child }) { return MaterialApp( home: Center( child: Material(child: child), ), ); }